mirror of
https://github.com/torvalds/linux
synced 2024-10-04 10:26:40 +00:00
5fc509bc2b
Commitce0d3c0a6f("genirq: Revert sparse irq locking around __cpu_up() and move it to x86 for now") reverted irq locking introduced by commita899418167("hotplug: Prevent alloc/free of irq descriptors during cpu up/down") because of Xen allocating irqs in both of its cpu_up ops. We can move those allocations into CPU notifiers so that original patch can be reinstated. Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
33 lines
780 B
C
33 lines
780 B
C
#ifndef _XEN_SMP_H
|
|
|
|
#ifdef CONFIG_SMP
|
|
extern void xen_send_IPI_mask(const struct cpumask *mask,
|
|
int vector);
|
|
extern void xen_send_IPI_mask_allbutself(const struct cpumask *mask,
|
|
int vector);
|
|
extern void xen_send_IPI_allbutself(int vector);
|
|
extern void xen_send_IPI_all(int vector);
|
|
extern void xen_send_IPI_self(int vector);
|
|
|
|
extern int xen_smp_intr_init(unsigned int cpu);
|
|
extern void xen_smp_intr_free(unsigned int cpu);
|
|
|
|
#else /* CONFIG_SMP */
|
|
|
|
static inline int xen_smp_intr_init(unsigned int cpu)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void xen_smp_intr_free(unsigned int cpu) {}
|
|
#endif /* CONFIG_SMP */
|
|
|
|
#ifdef CONFIG_XEN_PVH
|
|
extern void xen_pvh_early_cpu_init(int cpu, bool entry);
|
|
#else
|
|
static inline void xen_pvh_early_cpu_init(int cpu, bool entry)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#endif
|